Peterbilt 579

The Peterbilt Model 579 combines aerodynamic innovation with powertrain optimization to deliver confidence and efficiency for the most cost-conscious companies. Peterbilt uses Computational Fluid Dynamics to test, refine and validate the Model 579's aerodynamic performance. Peterbilt's flexible aero packages provide the right combination of fairings, skirts and closeouts to exceed application-specific aerodynamic requirements. The Model 579 is offered in a day cab or detachable sleeper that adds versatility and longevity as well as improved resale value. In addition the Model 579 is also available with a Cummins alternative fuel engine.